Scroll bar....isn't in the JScrollBar...why?

Question

Hey, Ive created a perfect scroll bar, in a swing app, it looks perfect...except in my JScrollBar, there are no bars....why?
Here's my code...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Beginning of Code~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
* Summary description for gui
public class MapEditor extends JFrame
private JScrollPane jScrollPane1;
private JScrollPane jScrollPane3;
private JButton jButton2;
private JButton jButton3;
private JButton jButton6;
private JButton jButton7;
private JButton jButton8;
private JButton jButton9;
private JButton jButton10;
private JButton jButton11;
private JButton jButton12;
private JPanel contentPane;
// TODO: Add any attribute code to meet your needs here
public MapEditor()
     super();
     initializeComponent();
     // TODO: Add any constructor code after InitializeComponent call
     this.setVisible(true);
private void initializeComponent()
     jScrollPane1 = new JScrollPane();
     jScrollPane3 = new JScrollPane();
     jButton2 = new JButton();
     jButton3 = new JButton();
     jButton6 = new JButton();
     jButton7 = new JButton();
     jButton8 = new JButton();
     jButton9 = new JButton();
     jButton10 = new JButton();
     jButton11 = new JButton();
     jButton12 = new JButton();
     contentPane = (JPanel)this.getContentPane();
     // jScrollPane1
     // jScrollPane3
     // jButton2
     jButton2.setText("Rock");
     jButton2.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton2_actionPerformed(e);
     // jButton3
     jButton3.setText("Grass");
     jButton3.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton3_actionPerformed(e);
     // jButton6
     jButton6.setText("Grass2");
     jButton6.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton6_actionPerformed(e);
     // jButton7
     jButton7.setText("Water 1");
     jButton7.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton7_actionPerformed(e);
     // jButton8
     jButton8.setText("Path");
     jButton8.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton8_actionPerformed(e);
     // jButton9
     jButton9.setText("Water 3");
     jButton9.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton9_actionPerformed(e);
     // jButton10
     jButton10.setText("Dirt");
     jButton10.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton10_actionPerformed(e);
     // jButton11
     jButton11.setText("Snow");
     jButton11.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton11_actionPerformed(e);
     // jButton12
     jButton12.setText("Water 2");
     jButton12.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e)
               jButton12_actionPerformed(e);
     // contentPane
     contentPane.setLayout(null);
     addComponent(contentPane, jScrollPane1, 0,0,476,408);
     addComponent(contentPane, jScrollPane3, 476,86,248,290);
     addComponent(contentPane, jButton2, 476,1,83,28);
     addComponent(contentPane, jButton3, 559,1,83,28);
     addComponent(contentPane, jButton6, 643,1,83,28);
     addComponent(contentPane, jButton7, 476,30,83,28);
     addComponent(contentPane, jButton8, 476,58,83,28);
     addComponent(contentPane, jButton9, 643,30,83,28);
     addComponent(contentPane, jButton10, 643,58,83,28);
     addComponent(contentPane, jButton11, 559,58,83,28);
     addComponent(contentPane, jButton12, 560,30,83,28);
     // gui
     this.setTitle("gui - extends JFrame");
     this.setLocation(new Point(0, 0));
     this.setSize(new Dimension(729, 627));
/** Add Component Without a Layout Manager (Absolute Positioning) */
private void addComponent(Container container,Component c,int x,int y,int width,int height)
     c.setBounds(x,y,width,height);
     container.add(c);
// TODO: Add any appropriate code in the following Event Handling Methods
private void jButton2_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton3_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton6_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton7_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton8_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton9_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton10_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton11_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
private void jButton12_actionPerformed(ActionEvent e)
     // TODO: Add any handling code here
// TODO: Add any method code to meet your needs in the following area
public static void main(String[] args) {
          new MapEditor();
}

Answer 1

Hi,
please use code tag when posting so much code.
It eases a lot reading your code.
Hey, Ive created a perfect scroll bar, in a swing app,
it looks perfect...except in my JScrollBar, there are
no bars....why?basically because there is nothing to scroll and even to view !!
nowhere in your code appears a call to :
jScrollPane1.setViewportView(Component view);
Moreover the scroll bar appearance policy, by default is when needed.
When needed means that if the component prefered size you wish
to view is greater than the one of the JScrollPane, they will appear
otherwise they won't.
So, what would you like to see in you JScrollPane ? the buttons ?
regards,